Arsenalhave provided a worrying update onSead Kolasinacafter an injury suffered during Sunday’s chaotic Premier League win over Everton and could sell Pierre-Emerick Aubameyang this summer rather than risk losing him

The Serbian left-back made his first appearance for six weeks against Carlo Ancelotti’s side following an ankle problem, but lasted just 18 minutes before suffering a serious-looking shoulder injury during a collision with Djibril Sidibe and making way for Bukayo Saka.

Gunners boss Mikel Arteta admitted after the 3-2 victory at Emirates Stadium that the issue looked “bad” and that Kolasinac – who left the stadium using his shirt as a makeshift sling – was in a “lot of pain” and would need to be assessed by medical staff, but expressed hope that he had avoided a dislocation.

Arsenal issued a fresh update on Wednesday morning in advance of tomorrow night’s Europa League last-32, second-leg tie against Greek giants Olympiacos, in which they confirmed that the 26-year-old was dealing with a “significant” right shoulder injury and will undergo further specialist assessments this week.

At this stage it remains to be seen how much more time Kolasinac is now slated to miss.

Fellow left-back Kieran Tierney is hoping to be back in full training by the end of the month after suffering his own shoulder injury in December.

That is the same case for January arrival Cedric Soares (knee), though Calum Chambers is a long-term absentee after rupturing his anterior cruciate ligament last month.

Meanwhile, Arsenal could sell Pierre-Emerick Aubameyang this summer rather than risk losing him on a free next year, with 30-year-old stalling on contract as he’s desperate to win silverware.

Arsenalare set to open talks withPierre-Emerick Aubameyangas they weigh up whether to put their star striker up for sale in the summer.

The Gabon international has been the Gunners’ most important player since his arrival in 2018 – scoring 60 goals

Arsenal have been rebuffed in their attempts to get him to sign a new contract, with Aubameyang, 30, shelving the most recent round of discussions after becoming disillusioned under previous manager Unai Emery.

The former Borussia Dortmund striker is approaching the final 12 months of his deal and Arsenal are likely to listen to offers for their captain in the summer rather than risk losing him for nothing next year.

The upward trajectory of the club’s fortunes since the appointment of manager Mikel Arteta has raised hopes that he can be persuaded to commit to Arsenal.

The club are paying 31-year-old Mesut Ozil £350,000 per week – a salary that has not always proved value for money.

Aubameyang would command close to Ozil’s current wage if he were to sign a new deal, but the club do not want to be saddled with another huge financial commitment for a player approaching the twilight of his career.

Arsenal are also planning to welcome back Arsene Wenger and Santi Cazorla for a farewell match ahead of next season

Wenger has already been contacted about the possibility of making his first official attendance at the Emirates since his 22-year reign came to an end in 2018.

Likewise, head of football operations Raul Sanllehi told a supporters forum last week that the club want to give former playmaker Cazorla, whose career at Arsenal was ravaged by injury, the opportunity to say a proper goodbye to the fans and there are hopes to host his current club Villarreal for a pre-season friendly.